contrib/wpa/src/ap/authsrv.c

   1 /*
   2  * Authentication server setup
   3  * Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
   4  *
   5  * This software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #include "utils/includes.h"
  10
  11 #include "utils/common.h"
  12 #include "crypto/tls.h"
  13 #include "eap_server/eap.h"
  14 #include "eap_server/eap_sim_db.h"
  15 #include "eapol_auth/eapol_auth_sm.h"
  16 #include "radius/radius_server.h"
  17 #include "hostapd.h"
  18 #include "ap_config.h"
  19 #include "sta_info.h"
  20 #include "authsrv.h"
  21
  22
  23 #if defined(EAP_SERVER_SIM) || defined(EAP_SERVER_AKA)
  24 #define EAP_SIM_DB
  25 #endif /* EAP_SERVER_SIM || EAP_SERVER_AKA */
  26
  27
  28 #ifdef EAP_SIM_DB
  29 static int hostapd_sim_db_cb_sta(struct hostapd_data *hapd,
  30                                  struct sta_info *sta, void *ctx)
  31 {
  32         if (eapol_auth_eap_pending_cb(sta->eapol_sm, ctx) == 0)
  33                 return 1;
  34         return 0;
  35 }
  36
  37
  38 static void hostapd_sim_db_cb(void *ctx, void *session_ctx)
  39 {
  40         struct hostapd_data *hapd = ctx;
  41         if (ap_for_each_sta(hapd, hostapd_sim_db_cb_sta, session_ctx) == 0) {
  42 #ifdef RADIUS_SERVER
  43                 radius_server_eap_pending_cb(hapd->radius_srv, session_ctx);
  44 #endif /* RADIUS_SERVER */
  45         }
  46 }
  47 #endif /* EAP_SIM_DB */
  48
  49
  50 #ifdef RADIUS_SERVER
  51
  52 static int hostapd_radius_get_eap_user(void *ctx, const u8 *identity,
  53                                        size_t identity_len, int phase2,
  54                                        struct eap_user *user)
  55 {
  56         const struct hostapd_eap_user *eap_user;
  57         int i;
  58
  59         eap_user = hostapd_get_eap_user(ctx, identity, identity_len, phase2);
  60         if (eap_user == NULL)
  61                 return -1;
  62
  63         if (user == NULL)
  64                 return 0;
  65
  66         os_memset(user, 0, sizeof(*user));
  67         for (i = 0; i < EAP_MAX_METHODS; i++) {
  68                 user->methods[i].vendor = eap_user->methods[i].vendor;
  69                 user->methods[i].method = eap_user->methods[i].method;
  70         }
  71
  72         if (eap_user->password) {
  73                 user->password = os_malloc(eap_user->password_len);
  74                 if (user->password == NULL)
  75                         return -1;
  76                 os_memcpy(user->password, eap_user->password,
  77                           eap_user->password_len);
  78                 user->password_len = eap_user->password_len;
  79                 user->password_hash = eap_user->password_hash;
  80         }
  81         user->force_version = eap_user->force_version;
  82         user->macacl = eap_user->macacl;
  83         user->ttls_auth = eap_user->ttls_auth;
  84         user->remediation = eap_user->remediation;
  85         user->accept_attr = eap_user->accept_attr;
  86
  87         return 0;
  88 }
  89
  90
  91 static int hostapd_setup_radius_srv(struct hostapd_data *hapd)
  92 {
  93         struct radius_server_conf srv;
  94         struct hostapd_bss_config *conf = hapd->conf;
  95         os_memset(&srv, 0, sizeof(srv));
  96         srv.client_file = conf->radius_server_clients;
  97         srv.auth_port = conf->radius_server_auth_port;
  98         srv.acct_port = conf->radius_server_acct_port;
  99         srv.conf_ctx = hapd;
 100         srv.eap_sim_db_priv = hapd->eap_sim_db_priv;
 101         srv.ssl_ctx = hapd->ssl_ctx;
 102         srv.msg_ctx = hapd->msg_ctx;
 103         srv.pac_opaque_encr_key = conf->pac_opaque_encr_key;
 104         srv.eap_fast_a_id = conf->eap_fast_a_id;
 105         srv.eap_fast_a_id_len = conf->eap_fast_a_id_len;
 106         srv.eap_fast_a_id_info = conf->eap_fast_a_id_info;
 107         srv.eap_fast_prov = conf->eap_fast_prov;
 108         srv.pac_key_lifetime = conf->pac_key_lifetime;
 109         srv.pac_key_refresh_time = conf->pac_key_refresh_time;
 110         srv.eap_sim_aka_result_ind = conf->eap_sim_aka_result_ind;
 111         srv.tnc = conf->tnc;
 112         srv.wps = hapd->wps;
 113         srv.ipv6 = conf->radius_server_ipv6;
 114         srv.get_eap_user = hostapd_radius_get_eap_user;
 115         srv.eap_req_id_text = conf->eap_req_id_text;
 116         srv.eap_req_id_text_len = conf->eap_req_id_text_len;
 117         srv.pwd_group = conf->pwd_group;
 118         srv.server_id = conf->server_id ? conf->server_id : "hostapd";
 119         srv.sqlite_file = conf->eap_user_sqlite;
 120 #ifdef CONFIG_RADIUS_TEST
 121         srv.dump_msk_file = conf->dump_msk_file;
 122 #endif /* CONFIG_RADIUS_TEST */
 123 #ifdef CONFIG_HS20
 124         srv.subscr_remediation_url = conf->subscr_remediation_url;
 125         srv.subscr_remediation_method = conf->subscr_remediation_method;
 126 #endif /* CONFIG_HS20 */
 127         srv.erp = conf->eap_server_erp;
 128         srv.erp_domain = conf->erp_domain;
 129
 130         hapd->radius_srv = radius_server_init(&srv);
 131         if (hapd->radius_srv == NULL) {
 132                 wpa_printf(MSG_ERROR, "RADIUS server initialization failed.");
 133                 return -1;
 134         }
 135
 136         return 0;
 137 }
 138
 139 #endif /* RADIUS_SERVER */
 140
 141
 142 int authsrv_init(struct hostapd_data *hapd)
 143 {
 144 #ifdef EAP_TLS_FUNCS
 145         if (hapd->conf->eap_server &&
 146             (hapd->conf->ca_cert || hapd->conf->server_cert ||
 147              hapd->conf->private_key || hapd->conf->dh_file)) {
 148                 struct tls_connection_params params;
 149
 150                 hapd->ssl_ctx = tls_init(NULL);
 151                 if (hapd->ssl_ctx == NULL) {
 152                         wpa_printf(MSG_ERROR, "Failed to initialize TLS");
 153                         authsrv_deinit(hapd);
 154                         return -1;
 155                 }
 156
 157                 os_memset(&params, 0, sizeof(params));
 158                 params.ca_cert = hapd->conf->ca_cert;
 159                 params.client_cert = hapd->conf->server_cert;
 160                 params.private_key = hapd->conf->private_key;
 161                 params.private_key_passwd = hapd->conf->private_key_passwd;
 162                 params.dh_file = hapd->conf->dh_file;
 163                 params.openssl_ciphers = hapd->conf->openssl_ciphers;
 164                 params.ocsp_stapling_response =
 165                         hapd->conf->ocsp_stapling_response;
 166
 167                 if (tls_global_set_params(hapd->ssl_ctx, &params)) {
 168                         wpa_printf(MSG_ERROR, "Failed to set TLS parameters");
 169                         authsrv_deinit(hapd);
 170                         return -1;
 171                 }
 172
 173                 if (tls_global_set_verify(hapd->ssl_ctx,
 174                                           hapd->conf->check_crl)) {
 175                         wpa_printf(MSG_ERROR, "Failed to enable check_crl");
 176                         authsrv_deinit(hapd);
 177                         return -1;
 178                 }
 179         }
 180 #endif /* EAP_TLS_FUNCS */
 181
 182 #ifdef EAP_SIM_DB
 183         if (hapd->conf->eap_sim_db) {
 184                 hapd->eap_sim_db_priv =
 185                         eap_sim_db_init(hapd->conf->eap_sim_db,
 186                                         hostapd_sim_db_cb, hapd);
 187                 if (hapd->eap_sim_db_priv == NULL) {
 188                         wpa_printf(MSG_ERROR, "Failed to initialize EAP-SIM "
 189                                    "database interface");
 190                         authsrv_deinit(hapd);
 191                         return -1;
 192                 }
 193         }
 194 #endif /* EAP_SIM_DB */
 195
 196 #ifdef RADIUS_SERVER
 197         if (hapd->conf->radius_server_clients &&
 198             hostapd_setup_radius_srv(hapd))
 199                 return -1;
 200 #endif /* RADIUS_SERVER */
 201
 202         return 0;
 203 }
 204
 205
 206 void authsrv_deinit(struct hostapd_data *hapd)
 207 {
 208 #ifdef RADIUS_SERVER
 209         radius_server_deinit(hapd->radius_srv);
 210         hapd->radius_srv = NULL;
 211 #endif /* RADIUS_SERVER */
 212
 213 #ifdef EAP_TLS_FUNCS
 214         if (hapd->ssl_ctx) {
 215                 tls_deinit(hapd->ssl_ctx);
 216                 hapd->ssl_ctx = NULL;
 217         }
 218 #endif /* EAP_TLS_FUNCS */
 219
 220 #ifdef EAP_SIM_DB
 221         if (hapd->eap_sim_db_priv) {
 222                 eap_sim_db_deinit(hapd->eap_sim_db_priv);
 223                 hapd->eap_sim_db_priv = NULL;
 224         }
 225 #endif /* EAP_SIM_DB */
 226 }